• Lorenzo Pieralisi's avatar
    arm64: kernel: suspend/resume registers save/restore · 6732bc65
    Lorenzo Pieralisi authored
    
    
    Power management software requires the kernel to save and restore
    CPU registers while going through suspend and resume operations
    triggered by kernel subsystems like CPU idle and suspend to RAM.
    
    This patch implements code that provides save and restore mechanism
    for the arm v8 implementation. Memory for the context is passed as
    parameter to both cpu_do_suspend and cpu_do_resume functions, and allows
    the callers to implement context allocation as they deem fit.
    
    The registers that are saved and restored correspond to the registers set
    actually required by the kernel to be up and running which represents a
    subset of v8 ISA.
    Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
    6732bc65
proc-fns.h 1.56 KB